CN105478982A - Resistance plug welding method of aluminum alloy-high-strength steel - Google Patents
Resistance plug welding method of aluminum alloy-high-strength steel Download PDFInfo
- Publication number
- CN105478982A CN105478982A CN201510882435.8A CN201510882435A CN105478982A CN 105478982 A CN105478982 A CN 105478982A CN 201510882435 A CN201510882435 A CN 201510882435A CN 105478982 A CN105478982 A CN 105478982A
- Authority
- CN
- China
- Prior art keywords
- rivet
- strength steel
- welding
- aluminum alloy
- aluminium alloy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/10—Spot welding; Stitch welding
- B23K11/11—Spot welding
- B23K11/115—Spot welding by means of two electrodes placed opposite one another on both sides of the welded parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/16—Resistance welding; Severing by resistance heating taking account of the properties of the material to be welded
- B23K11/20—Resistance welding; Severing by resistance heating taking account of the properties of the material to be welded of different metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/34—Preliminary treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/006—Vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/18—Dissimilar materials
- B23K2103/20—Ferrous alloys and aluminium or alloys thereof
Abstract
The invention relates to a resistance plug welding method of aluminum alloy-high-strength steel. A rivet hole is formed in an aluminum alloy plate in a center position of an aluminum alloy plate-high-strength steel plate lap joint area; the diameter of the hole is consistent with the diameter of a rivet; the rivet is inserted in the rivet hole; the lower end of the rivet is leveled with the lower part of an aluminum alloy plate; and an inversion direct-current resistance spot welding machine is used for welding in the position of the rivet. As the rivet and high-strength steel adopts steel-steel welding, effective connection can be realized in the spot welding process; a molten core formed between the rivet and the high-strength steel becomes a bearing part; and a rivet head also achieves a self-locking effect on a joint. Like this, a crisp aluminum-iron intermetallic compound is not a main bearing part anymore, so that the performance of an aluminum alloy/high-strength steel joint is promoted. The technological method is low in material sensitivity and easy to be popularized and applied to connection of other materials, such as a magnesium alloy and high-strength steel.
Description
Technical field
The present invention relates to solder technology, specifically, relate to resistance spot welding technique field.
Background technology
Resistance spot welding is a kind of technology that the high resistance heat produced by the direct current instantaneous short circuit of big current completes welding, because it has higher automaticity and production efficiency, therefore is widely used in Auto-body manufacturing field.But along with the proposition of body lightening problem, light metal such as aluminium alloy and magnesium alloy are employed in Auto-body manufacturing gradually.In addition, new steel grade, if advanced high-strength steel and super-high strength steel are owing to having higher Strength Mass ratio, also starts to replace traditional steel grade more and more.So in Auto-body manufacturing, inevitably need the connectivity problem solving new material, this wherein just includes the connection of aluminium alloy and high-strength steel.When using traditional resistance spot welding welding aluminum alloy and high-strength steel, because the physical property of bi-material is as fusing point, thermal conductivity and linear expansivity have big difference, can form firmly crisp intermetallic compound at interface in welding process, severe exacerbation joint quality.
Therefore the present invention is on traditional resistance spot welding basis, proposes a kind of novel resistance plug welding method.The method had both been different from traditional stopple soldering method: prefabricated rivet hole on a part, in hole, fill up CO
2weldering solder joint, thus by a kind of mode that the part of porose part and atresia couples together; Also be different from the resistance plug welding method be suggested recently: all prefabricated rivet hole on two plates to be welded, bar or rivet run through in two plates and carries out resistance spot welding, thus a kind of mode that two plates are coupled together.Although these two kinds of methods can be applied in the middle of dissimilar metal connection, the former adopts arc welding method, and efficiency is low, and the latter needs to punch on two plates, and assembly difficulty is higher.The method that the present invention proposes is compared and is all made moderate progress in efficiency and cost with aforementioned two kinds of plug welding methods, and proves through test, uses the method can obtain than traditional resistor spot welding aluminium alloy/high-strength steel welding point more reliably.
Summary of the invention
The present invention solves the technical problem existed in prior art, provides the method can improving aluminium alloy-high-strength steel spot welding characteristics.
Concrete technical scheme is as follows:
A kind of resistance plug welding method of aluminium alloy-high-strength steel; The aluminium alloy plate of the center of the overlapping regions of aluminium alloy plate-high strength steel plate is provided with rivet hole, and bore dia is consistent with rivet diameter, is filled in by rivet in rivet hole, and rivet lower end and aluminium alloy plate bottom maintain an equal level; Use inversion direct current resistance mash welder in the welding of rivet location place.
Rivet material and selecting of size are the major issues that the present invention needs to consider.When selecting the material of rivet, need the rivet ensureing to fill in welding process aluminium sheet can complete reliable connection with lower steel plate on the one hand, also need the cost considering rivet on the other hand, therefore galvanized iron rivet common on market selected by rivet, material is Q235 steel.For determining rational rivet sizes, the rivet of 3mm, 4mm, 5mm, 6mm tetra-kinds of diameters is selected to test.Result shows, when rivet diameter rises to 5mm from 3mm, strength of joint raises with rivet diameter and raises, and when rivet diameter continues to increase to 6mm, strength of joint reduces on the contrary.When selecting 3mm and 4mm diameter rivet, joint presents the form of interfacial fracture, and when selecting the rivet of 5mm and 6mm diameter, joint presents the form of aluminium alloy mother metal fracture.When rivet diameter is too small, rivet and the nugget size that high-strength steel is formed are also just corresponding less, and bearing capacity is not enough, therefore destroys in drawing process, and present interfacial fracture, intensity is lower.And during rivet sizes increase, the nugget size of formation also increases, when nugget bearing capacity is enough strong, namely drawing process Fracture has occurred in relatively weak aluminium alloy mother metal.But increase further along with rivet sizes, aluminium sheet place needs prefabricated larger rivet hole, reduce the effective bearing area of aluminum mother plate, therefore hot strength reduces on the contrary.In addition, consider based on light-weighted object, rivet diameter should be little as far as possible, therefore test test plate (panel) used for this invention, uses 5mm diameter rivet best.For the situation in practical application, can determine according to corresponding principle the rivet using which kind of size, which kind of material.
Welding parameter: electrode pressure 3.6kN, weld interval 300ms, welding current 7 ~ 10kA.The selection principle of welding parameter is that can realize between high-strength steel with rivet under the welding parameter selected firm is connected.
Because rivet is welding between steel with steel with high-strength steel, therefore can realize effective connection in pinpoint welding procedure, the nugget formed between rivet and high-strength steel becomes carrying position, and manufactured head butt joint also serves self-locking action.Like this, firmly crisp ferro-aluminum intermetallic compound will be no longer mainly carry position, and aluminium alloy/high-strength steel joint performance gets a promotion.
The advantage that the present invention has and good effect are: use traditional resistance spot welding equipment just can realize the reliable connection of aluminium alloy and high-strength steel; Only at the prefabricated rivet hole of aluminum alloy side, processing cost need be reduced; And this kind of process is not high to the sensitivity of material, be easy to be applied to the connection of other materials as magnesium alloy and high-strength steel.
Accompanying drawing explanation
Fig. 1 is resistance plug welding process schematic;
Fig. 2 is weldment assembling plan view;
Fig. 3 is weldment assembled front view;
Wherein: 1-mash welder, 2-aluminium alloy plate, 3-high strength steel plate, 4-iron rivet, 5-overlapping regions, 6-rivet hole.
Detailed description of the invention
For summary of the invention of the present invention, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
As shown in Figure 1, 2, 3: on the aluminium alloy plate 2 of the center of the overlapping regions 5 of aluminium alloy plate-high strength steel plate, be provided with rivet hole 6, bore dia is consistent with rivet 4 diameter, is filled in by rivet in rivet hole, and rivet lower end and aluminium alloy plate bottom maintain an equal level; Use inversion direct current resistance mash welder 1 in the welding of rivet location place.
Embodiment:
One, welds prepares
1. use drilling machine at the prefabricated rivet hole 6 of the appointed part of aluminium alloy plate 2, bore diameter is 5mm.
2. fill in hole by 5mm diameter iron rivet 4, rivet lower end should maintain an equal level with aluminium alloy plate lower end.
3. oil removing, foreign material cleaning are carried out in pair welding position, avoid the impact of impurity welding quality.
Two. welding method and welding material
1. welding method adopts inversion type direct-current resistance spot welding.
2. welding material adopts aluminium alloy plate and high strength steel plate 3, and aluminium sheet is of a size of 2 × 25 × 100mm, and plate size is 1.8 × 25 × 100mm, and overlapping regions 5 is of a size of 25 × 25mm.Rivet is Q235 iron rivet.
Three. welding procedure
1. welding procedure as shown in Figure 1, uses mash welder in the welding of rivet place.
2. weldment assembling form as shown in Figures 2 and 3.
3. select electrode pressure 3.6kN, electrode diameter 10mm, electric current 8kA, weld interval, 300ms welded.
Four. Mechanical test results
Adopt above-mentioned technological parameter to weld five samples, hot strength test is carried out in butt joint, and find that joint mean intensity is about 7.1kN, fracture all occurs in aluminium alloy mother metal.Object based on the comparison, use same electrode pressure, electrode diameter, weld interval 200ms, electric current 16kA (optimal parameter that preliminary experiment draws) carries out direct resistance spot welding test, same test plate (panel) size and joint form is adopted to weld five samples, extension test terminates rear discovery joint mean intensity and is about 2.6kN, and fracture all occurs in interface.This result shows that Novel resistor plug welding method and can improve greatly the intensity of aluminium alloy/high-strength steel joint.
Although be described the preferred embodiments of the present invention by reference to the accompanying drawings above; but the present invention is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is only schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; do not departing under the ambit that present inventive concept and claim protect, can also make a lot of form, these all belong within protection scope of the present invention.
Claims (4)
1. the resistance plug welding method of aluminium alloy-high-strength steel; The aluminium alloy plate that it is characterized in that the center of the overlapping regions at aluminium alloy plate-high strength steel plate is provided with rivet hole, and bore dia is consistent with rivet diameter, is filled in by rivet in rivet hole, and rivet lower end and aluminium alloy plate bottom maintain an equal level; Use inversion direct current resistance mash welder in the welding of rivet location place.
2. the method for claim 1, it is characterized in that rivet is galvanized iron rivet, material is Q235 steel.
3. the method for claim 1, is characterized in that rivet diameter is 5mm.
4. the method for claim 1, is characterized in that inversion direct current resistance spot welding machine connects parameter and is: electrode pressure 3.6kN, weld interval 300ms, welding current 7 ~ 10kA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510882435.8A CN105478982A (en) | 2015-12-03 | 2015-12-03 | Resistance plug welding method of aluminum alloy-high-strength steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510882435.8A CN105478982A (en) | 2015-12-03 | 2015-12-03 | Resistance plug welding method of aluminum alloy-high-strength steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105478982A true CN105478982A (en) | 2016-04-13 |
Family
ID=55666444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510882435.8A Pending CN105478982A (en) | 2015-12-03 | 2015-12-03 | Resistance plug welding method of aluminum alloy-high-strength steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105478982A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106735905A (en) * | 2017-01-03 | 2017-05-31 | 上海工程技术大学 | A kind of welding method of light-duty aluminum-steel liquid power torque-converters |
| CN107234327A (en) * | 2017-05-27 | 2017-10-10 | 天津大学 | Sheet metal stings weldering composite connecting device and method |
| DK201670272A1 (en) * | 2016-04-28 | 2017-12-04 | Hebei Lixin Tech Co Ltd | Spot welding of metal plates with inoculants |
| CN109202247A (en) * | 2018-10-26 | 2019-01-15 | 湖北工业大学 | A kind of welding method of aluminium alloy and steel |
| CN109689271A (en) * | 2016-09-20 | 2019-04-26 | 株式会社神户制钢所 | Dissimilar material engagement arc-welding process, engagement accessory and welding dissimilar materials joint |
| CN110254329A (en) * | 2019-07-19 | 2019-09-20 | 重庆铝器时代科技有限公司 | A kind of self-discharging carriage with bottom plate reinforcement, foot guard and reinforcement subframe |
| CN110834139A (en) * | 2018-08-16 | 2020-02-25 | 中国科学院上海光学精密机械研究所 | Method for resistance spot welding of dissimilar metals |
| CN112122758A (en) * | 2020-09-22 | 2020-12-25 | 哈尔滨工业大学（威海） | Ni element-regulated magnetic field-assisted resistance unit welding method for aluminum alloy and steel |
| EP4005721A4 (en) * | 2019-09-18 | 2022-10-26 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Joining method and joined body |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100804943B1 (en) * | 2006-11-15 | 2008-02-20 | 주식회사 포스코 | Method for spot welding and its product thereof |
| US20090294410A1 (en) * | 2008-05-28 | 2009-12-03 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel Ltd) | Method for joining dissimilar metals of steel product and light metal product with each other |
| JP2009285878A (en) * | 2008-05-27 | 2009-12-10 | Fujifilm Corp | Inkjet recorder and purge method |
| CN103350276A (en) * | 2013-07-29 | 2013-10-16 | 天津大学 | Spot welding method and application thereof in aluminum alloy and steel |
| JP2014000580A (en) * | 2012-06-18 | 2014-01-09 | Kobe Steel Ltd | Different material joined body, structure for different material joined body and rivet for different material joined body |
| US20150174690A1 (en) * | 2012-09-24 | 2015-06-25 | Nippon Steel & Sumitomo Metal Corporation | Spot welding method of high-strength steel sheets excellent in joint strength |
-
2015
- 2015-12-03 CN CN201510882435.8A patent/CN105478982A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100804943B1 (en) * | 2006-11-15 | 2008-02-20 | 주식회사 포스코 | Method for spot welding and its product thereof |
| JP2009285878A (en) * | 2008-05-27 | 2009-12-10 | Fujifilm Corp | Inkjet recorder and purge method |
| US20090294410A1 (en) * | 2008-05-28 | 2009-12-03 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel Ltd) | Method for joining dissimilar metals of steel product and light metal product with each other |
| JP2014000580A (en) * | 2012-06-18 | 2014-01-09 | Kobe Steel Ltd | Different material joined body, structure for different material joined body and rivet for different material joined body |
| US20150174690A1 (en) * | 2012-09-24 | 2015-06-25 | Nippon Steel & Sumitomo Metal Corporation | Spot welding method of high-strength steel sheets excellent in joint strength |
| CN103350276A (en) * | 2013-07-29 | 2013-10-16 | 天津大学 | Spot welding method and application thereof in aluminum alloy and steel |
Non-Patent Citations (1)
| Title |
|---|
| G. MESCHUT: "Innovative joining technologies for multi-material structures", 《WELD WORLD》 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK201670272A1 (en) * | 2016-04-28 | 2017-12-04 | Hebei Lixin Tech Co Ltd | Spot welding of metal plates with inoculants |
| DK179149B1 (en) * | 2016-04-28 | 2017-12-11 | Hebei Lixin Tech Co Ltd | Spot welding of metal plates with inoculants |
| CN109689271A (en) * | 2016-09-20 | 2019-04-26 | 株式会社神户制钢所 | Dissimilar material engagement arc-welding process, engagement accessory and welding dissimilar materials joint |
| CN106735905B (en) * | 2017-01-03 | 2018-04-24 | 上海工程技术大学 | A kind of welding method of light-duty aluminum-steel liquid power torque-converters |
| CN106735905A (en) * | 2017-01-03 | 2017-05-31 | 上海工程技术大学 | A kind of welding method of light-duty aluminum-steel liquid power torque-converters |
| CN107234327A (en) * | 2017-05-27 | 2017-10-10 | 天津大学 | Sheet metal stings weldering composite connecting device and method |
| CN110834139A (en) * | 2018-08-16 | 2020-02-25 | 中国科学院上海光学精密机械研究所 | Method for resistance spot welding of dissimilar metals |
| CN110834139B (en) * | 2018-08-16 | 2022-03-08 | 中国科学院上海光学精密机械研究所 | Method for resistance spot welding of dissimilar metals |
| CN109202247A (en) * | 2018-10-26 | 2019-01-15 | 湖北工业大学 | A kind of welding method of aluminium alloy and steel |
| CN110254329A (en) * | 2019-07-19 | 2019-09-20 | 重庆铝器时代科技有限公司 | A kind of self-discharging carriage with bottom plate reinforcement, foot guard and reinforcement subframe |
| CN110254329B (en) * | 2019-07-19 | 2024-02-13 | 重庆铝器时代科技有限公司 | Self-unloading carriage with bottom plate reinforcement, bottom protection and reinforcement auxiliary frame |
| EP4005721A4 (en) * | 2019-09-18 | 2022-10-26 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Joining method and joined body |
| CN112122758A (en) * | 2020-09-22 | 2020-12-25 | 哈尔滨工业大学（威海） | Ni element-regulated magnetic field-assisted resistance unit welding method for aluminum alloy and steel |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105478982A (en) | Resistance plug welding method of aluminum alloy-high-strength steel | |
| CN100562396C (en) | A kind of electric resistance welding method | |
| CN102500869B (en) | Novel metal material arc spot welding method | |
| CN102059460A (en) | Adhesive jointing and electric arc spot welding combined connection method for metals | |
| WO2010068848A3 (en) | Welded metal laminate structure and method for welding a metal laminate structure | |
| CN106825874B (en) | A kind of submerged-arc welding single face welding and double face shaping technique | |
| CN102896398A (en) | Aluminum alloy arc spot welding method based on CMT (Cold Metal Transmission Welding) and welding system | |
| CN106216819B (en) | A kind of welding technique of rotten spheroidal graphite cast-iron | |
| CN108406071A (en) | A kind of thin plate and ultra thin plate resistance spot welding connection method | |
| JP2019150831A (en) | Arc welding method for different material joint | |
| CN108500576A (en) | A kind of welding procedure of differential assembly | |
| KR102127991B1 (en) | Resistance spot welding method and welded structure | |
| CN105345223B (en) | A kind of automatic welding restorative procedure for anode steel claw head | |
| CN109202247A (en) | A kind of welding method of aluminium alloy and steel | |
| TWI307286B (en) | Golf head and welding method thereof | |
| CN105880853A (en) | Repair welding process | |
| CN113333956A (en) | Resistance spot welding-laser composite spot welding method for aluminum steel dissimilar metal | |
| CN113199125A (en) | Resistance spot welding electrode for aluminum steel dissimilar metal welding | |
| CN100341657C (en) | Resistive spot welding process | |
| CN105798411A (en) | Ultrasonic resistance Composite butt brazing method for aluminum alloy and insulated sliding welding device | |
| CN107755862A (en) | One kind series connection electrode double-submerged arc method | |
| CN106270956A (en) | A kind of orthotropic plate U angle of rib weld seam transverse presentation symmetry mariages complex welding method | |
| CN215658386U (en) | Resistance spot welding electrode for aluminum steel dissimilar metal welding | |
| CN105328310B (en) | A kind of automatic argon arc for magnesium alloy joint welding cracks welding with filler wire method | |
| CN209959679U (en) | Square welded nut |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160413 |